CN116264488A

CN116264488A - Interference measurement method, device, equipment and storage medium

Info

Publication number: CN116264488A
Application number: CN202111530595.8A
Authority: CN
Inventors: 袁璞; 刘昊; 孙布勒; 姜大洁; 刘劲; 史斯豪
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2023-06-16
Also published as: WO2023109734A1

Abstract

The application discloses an interference measurement method, an interference measurement device, interference measurement equipment and a storage medium, which belong to the technical field of communication, and the interference measurement method in the embodiment of the application comprises the following steps: the receiving side receives a signal, wherein the signal comprises a second pilot frequency transmitted by an interference transmitting side, and the interference transmitting side is an interference source when the receiving side receives and measures the first pilot frequency of the transmitting side; the receiving side performing an interference measurement on the interfering transmitting side, the interference measurement comprising a measurement of the second pilot; the receiving side and the transmitting side both adopt an orthogonal time-frequency space domain OTFS system.

Description

Interference measurement method, device, equipment and storage medium

Technical Field

The application belongs to the technical field of communication, and particularly relates to an interference measurement method, device, equipment and storage medium.

Background

A communication system defines a series of pilots with different functions for performing a series of functions of synchronization, CSI measurement, channel estimation, positioning, or phase tracking. These pilots are typically constructed with sequences having good auto-or cross-correlation properties, modulated and mapped to be transmitted on resource bins in the time-frequency domain. The transmitter selects different base sequences and mapping modes according to different functions of each pilot frequency, and the receiver measures and manages the interference of the received signals in different domains by using different algorithms according to different functions of each pilot frequency.

But a large resource overhead is caused due to different interference measurement modes of different reference signals.

Disclosure of Invention

The embodiment of the application provides an interference measurement method, which can solve the problem of overlarge resource expenditure.

In a first aspect, there is provided a method of interference measurement, the method comprising:

the receiving side receives a signal, wherein the signal comprises a second pilot frequency transmitted by an interference transmitting side, and the interference transmitting side is an interference source when the receiving side receives and measures the first pilot frequency of the transmitting side;

the receiving side performing an interference measurement on the interfering transmitting side, the interference measurement comprising a measurement of the second pilot;

the receiving side and the transmitting side both adopt an orthogonal time-frequency space domain OTFS system.

In a second aspect, there is provided a method of interference measurement, the method comprising:

the method comprises the steps that a transmitting side transmits an initial signal, wherein the initial signal is used for receiving and measuring a first pilot frequency of the transmitting side by a receiving side;

the signal corresponding to the receiving measurement comprises the initial signal and a second pilot frequency sent by an interference sending side, the interference sending side is an interference source of the receiving measurement, and the second pilot frequency is used for interference measurement of the receiving side for the interference sending side;

In a third aspect, there is provided an interference measurement device comprising:

the first receiving module is used for receiving a signal, wherein the signal comprises a second pilot frequency transmitted by an interference transmitting side, and the interference transmitting side is an interference source when the receiving side receives and measures the first pilot frequency of the transmitting side;

an interference measurement module for performing interference measurement on the interference transmitting side, the interference measurement including measurement of the second pilot;

In a fourth aspect, there is provided an interference measurement device comprising:

the first transmitting module is used for transmitting an initial signal, wherein the initial signal is used for the receiving side to perform receiving measurement on a first pilot frequency of the transmitting side;

In a fifth aspect, there is provided a receiver-side device comprising a processor and a memory storing a program or instructions executable on the processor, which program or instructions when executed by the processor implement the steps of the method as described in the first aspect.

In a sixth aspect, a receiving side device is provided, including a processor and a communication interface, where the communication interface is configured to:

receiving a signal, wherein the signal comprises a second pilot frequency transmitted by an interference transmitting side, and the interference transmitting side is an interference source when the receiving side receives and measures the first pilot frequency of the transmitting side;

the processor is configured to:

performing interference measurements on the interfering transmitting side, the interference measurements comprising measurements on the second pilot;

In a seventh aspect, there is provided a transmitting side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the second aspect.

An eighth aspect provides a transmitting-side device, including a processor and a communication interface, where the communication interface is configured to:

transmitting an initial signal, wherein the initial signal is used for receiving and measuring a first pilot frequency of a transmitting side by the receiving side;

In a ninth aspect, there is provided an interference measurement system comprising: a receiving side device operable to perform the steps of the interference measurement method as described in the first aspect, and a transmitting side device operable to perform the steps of the interference measurement method as described in the second aspect.

In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect or performs the steps of the method according to the second aspect.

In an eleventh aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the second aspect.

In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to implement the steps of the method as described in the first aspect or to implement the steps of the method as described in the second aspect.

In the embodiment of the application, the interference measurement of the second pilot frequency of the interference transmitting side is performed based on the signals transmitted by the receiving side and the transmitting side of the orthogonal time-frequency space domain OTFS system, and the interference measurement of the second pilot frequency is realized when the first pilot frequency is transmitted in the OTFS system, so that the method is suitable for the interference measurement of various reference signals and effectively saves resources.

Drawings

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable;

figure 2 is a schematic diagram of the interconversion of a delay-doppler plane and a time-frequency plane provided by an embodiment of the present application;

FIG. 3 is a schematic diagram of channel response relationships under different planes provided by embodiments of the present application;

fig. 4 is a schematic diagram of a processing flow of a transceiver end of an OTFS multi-carrier system according to an embodiment of the present application;

fig. 5 is a schematic diagram of pilot mapping of a delay-doppler domain provided in an embodiment of the present application;

fig. 6 is a schematic diagram of mapping of a multi-port reference signal in a delay-doppler domain according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a reference signal and a mapping method thereof according to an embodiment of the present application;

FIG. 8 is a second diagram of a reference signal and a mapping method thereof according to an embodiment of the present application;

fig. 9 is one of flow diagrams of an interference measurement method provided in an embodiment of the present application;

fig. 10 is one schematic diagram of pilot mapping in a delay-doppler domain resource grid provided in an embodiment of the present application;

fig. 11 is a second schematic diagram of pilot mapping in a delay-doppler domain resource grid provided in an embodiment of the present application;

fig. 12 is one of schematic diagrams of measurement areas in a delay-doppler domain resource grid provided in an embodiment of the present application;

fig. 13 is a second schematic diagram of a measurement region in a delay-doppler domain resource grid according to an embodiment of the present application;

fig. 14 is a third diagram illustrating pilot mapping in a delay-doppler domain resource grid provided in an embodiment of the present application;

Figure 15 is a third diagram of a measurement region in a delay-doppler-domain resource grid provided in an embodiment of the present application;

FIG. 16 is a second flow chart of an interference measurement method according to the embodiment of the present application;

FIG. 17 is a schematic diagram of a structure of an interference measurement device according to an embodiment of the present disclosure;

FIG. 18 is a second schematic diagram of a structure of an interference measurement device according to an embodiment of the present disclosure;

fig. 19 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

fig. 20 is a schematic hardware structure of a receiving side device implementing an embodiment of the present application;

fig. 21 is a schematic hardware structure of a transmitting side device for implementing an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiments of the present application, only a base station in an NR system is described as an example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), user plane functions (User Plane Function, UPF), policy control functions (Policy Control Function, PCF), policy and charging rules function units (Policy and Charging Rules Function, PCRF), edge application service discovery functions (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data repository (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), network storage functions (Network Repository Function, NRF), network opening functions (Network Exposure Function, NEF), local NEF (or L-NEF), binding support functions (Binding Support Function, BSF), application functions (Application Function, AF), and the like. In the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.

The following will be described first:

in a complex electromagnetic wave transmission environment in a city, due to a large number of scattering, reflecting and refracting surfaces, the time when a wireless signal reaches a receiving antenna through different paths is different, namely, the multipath effect of transmission. Intersymbol interference ISI (inter symbol interference) is created when the preceding and following symbols of the transmitted signal arrive simultaneously over different paths, or when the following symbol arrives within the delay spread of the preceding symbol. Similarly, in the frequency domain, due to the doppler effect caused by the relative speed of the receiving and transmitting end, each subcarrier where the signal is located may shift in frequency to different degrees, so that the subcarriers that may be orthogonal may overlap, that is, the inter-carrier interference ICI (inter carrier interference) is generated. The OFDM multi-carrier system used in the existing protocol has better anti-ISI performance by adding the design of CP (cyclic prefix). However, OFDM has a weakness that the size of the subcarrier spacing is limited, so that in a scene of coping with high-speed movement (such as high-speed rail), due to a large doppler shift caused by a large relative speed between the transmitting and receiving ends, orthogonality between OFDM subcarriers is destroyed, and serious ICI is generated between the subcarriers.

OTFS technology was proposed to address the above problems in OFDM systems. OTFS techniques define a transformation between the delay-doppler domain and the time-frequency domain. By mapping the service data and the pilot frequency to the delay Doppler domain at the receiving and transmitting end, the delay and Doppler characteristics of the pilot frequency capturing channel in the delay Doppler domain are designed, and the pilot frequency pollution problem caused by ICI in the OFDM system is avoided by designing the guard interval, so that the channel estimation is more accurate, and the success rate of data decoding is improved by a receiver.

OTFS techniques assume that one intra-frame channel with a sample length of MN is unchanged. By introducing a spread spectrum sequence, the spread spectrum data are transmitted in a superposition way on the same resource; or the spread data is transmitted in a staggered way through a specially designed spread sequence. The spatial diversity characteristics may be enhanced by the spreading sequence. Meanwhile, under a multi-user scene, the multi-user diversity can be realized by utilizing the spread spectrum sequence, and the defect of larger multi-user processing time delay caused by the fact that the whole frame is necessary for demodulation in the traditional OTFS technology is avoided.

1. OTFS communication technology;

the delay and doppler characteristics of a channel are essentially determined by the multipath channel. Signals arriving at the receiver through different paths have different arrival times because of differences in propagation paths. For example two echoes s ₁ Sum s ₂ Each experiences a distance d ₁ And d ₂ Arrive at the receiver, they arrive at the receiver with a time difference of

c is the speed of light. Due to echo s ₁ Sum s ₂ There is a time difference between them that incoherent superposition at the receiver side causes an observed signal amplitude jitter, i.e. a fading effect. Similarly, the doppler spread of a multipath channel is also due to multipath effects.

The Doppler effect is that the relative speeds exist at the receiving and transmitting ends, signals arriving at the receiver through different paths have different incidence angles relative to the normal line of the antenna, so that the difference of the relative speeds is caused, and the Doppler frequency shift of the signals of the different paths is further caused to be different. Assume that the original frequency of the signal is f ₀ The relative speed of the receiving and transmitting end is Deltav, and the normal incidence included angle between the signal and the antenna of the receiving end is theta. Then there are:

obviously, when two echoes s ₁ Sum s ₂ Arrives at the receiving end via different pathsLines with different angles of incidence theta ₁ And theta ₂ The Doppler shift Δf obtained at this time ₁ And Δf ₂ And also different.

In summary, the signal seen by the receiver is a superposition of component signals from different paths with different delays and doppler, and is wholly embodied as a received signal with fading and frequency shift relative to the original signal. While delay-doppler analysis is performed on the channel, it helps to collect delay-doppler information for each path, reflecting the delay-doppler response of the channel.

The full name of OTFS modulation techniques is orthogonal time-frequency space domain (Orthogonal Time Frequency) modulation. The technique logically maps information in a data packet of size mxn, e.g., QAM (Quadrature Amplitude Modulation) symbols, into an mxn trellis point on a two-dimensional delay-doppler plane, i.e., the pulses within each trellis point modulate a QAM symbol in the data packet.

Further, the data set on the m×n delay-doppler domain plane can be transformed onto the n×m time-frequency domain plane by designing a set of orthogonal two-dimensional basis functions, which transformation is mathematically called inverse octyl fourier transform (Inverse Sympletic Fourier Transform, ISSFT).

Correspondingly, the transformation from the time-frequency domain to the delay-doppler domain is called the octave transform (Sympletic Fourier Transform, SFFT). The physical meaning behind this is that the delay and doppler effect of a signal is in fact a linear superposition effect of a series of echoes with different time and frequency offsets after the signal has passed through a multi-channel. That is, delay-doppler analysis and time-frequency domain analysis can be obtained by the above-described ISSFT and SSFT interconversions.

Figure 2 is a schematic diagram of the interconversion of a delay-doppler plane and a time-frequency plane provided by an embodiment of the present application; as shown in fig. 2, OTFS techniques may transform a time-varying multipath channel into a time-invariant two-dimensional delay-doppler domain channel (of a certain duration), thereby directly reflecting the channel delay-doppler response characteristics in the wireless link due to the geometry of the relative positions of reflectors between transceivers. The advantages are as follows:

(a) Invariance of channel coupling state. Since the delay and doppler of a signal reflect the direct effect of the reflectors in the physical channel, depending only on the relative speed and position of the reflectors, the delay and doppler of a signal can be considered as constant on the time scale of a radio frame.

(b) The separability of the channel coupling states. In the channel frequency response of the delay-doppler domain, all diversity paths are embodied as a single impulse response, which is completely separable. Whereas QAM symbols traverse all of these hierarchical paths.

(c) Orthogonality of channel coupling states. Since the channel impulse response of the delay-doppler domain is defined on one delay-doppler domain resource element, there is theoretically no IDIs (inter delay/Doppler interference) of delay and doppler dimensions at the receiving end.

Due to the characteristics, the delay Doppler domain analysis eliminates the difficulty of the traditional time-frequency domain analysis and tracking of time-varying fading characteristics, and in turn, all diversity characteristics of the time-frequency domain channel are extracted through the analysis of the time-invariant delay Doppler channel, and then the time-frequency domain channel is calculated through the conversion relation between the delay Doppler domain and the time-frequency domain. In a practical system, the number of delay paths and Doppler frequency shifts of a channel is far smaller than the number of time domain and frequency domain responses of the channel, and the channel represented by the delay Doppler domain is concise. Therefore, the OTFS technology is utilized to analyze in the delay Doppler domain, so that the encapsulation of the reference signals can be more compact and flexible, and the method is particularly beneficial to supporting a large-scale antenna array in a large-scale MIMO system.

The core of OTFS modulation is QAM symbols defined on the delay-doppler plane, transformed to the time-frequency domain for transmission, and then the receiving end returns to the delay-doppler domain processing. Thus, a wireless channel response analysis method over the delay-doppler domain can be introduced.

FIG. 3 is a schematic diagram of a channel response relationship under different planes provided in an embodiment of the present application, as shown in FIG. 3, which illustrates a relationship between expressions of channel responses of signals under different planes when the signals pass through a linear time-varying wireless channel;

in fig. 3, the SFFT transform formula is:

h(τ,v)＝∫∫H(t,f)e ^{-j2π(vt-fτ)} dτdv； (1)

correspondingly, the transformation formula of the ISSFT is:

H(t,f)＝∫∫h(τ,v)e ^j2π(vt-fτ) dτdv； (2)

when the signal passes through the linear time-varying channel, let the time domain received signal be R (t), its corresponding frequency domain received signal be R (f), and there are

r (t) may be expressed as follows:

r(t)＝s(t)*h(t)＝∫g(t,τ)s(t-τ)dτ； (3)

as can be seen from the relationship of figure 3,

g(t,τ)＝∫h(v,τ)e ^j2πvt dv； (4)

substituting (4) into (3) to obtain:

r(t)＝∫∫h(v,τ)s(t-τ)e ^j2πvt dτdv； (5)

from the relationship shown in fig. 3, the classical fourier transform theory, and equation (5), it follows:

based on equation (6), the analysis of the delay-doppler domain in the OTFS system can be implemented by adding an additional signal processing procedure to the transceiver end depending on the communication frame established on the time-frequency domain. And the additional signal processing is only composed of Fourier transformation, and can be completely realized by the existing hardware without adding a new module.

In practical systems, OTFS techniques may be implemented as pre-and post-processing modules of a filtered orthogonal frequency division multiplexing (Orthogonal frequency division multiplexing, OFDM) system, and thus have good compatibility with existing communication technology architectures, such as multi-carrier systems under NR technology architectures.

When the OTFS is combined with the multi-carrier system, the realization mode of the transmitting end is as follows: the QAM symbol containing the information to be transmitted is carried by the waveform of the delay Doppler plane, converted into the waveform of the time-frequency domain plane in the traditional multi-carrier system through a two-dimensional inverse-octave Fourier transform (Inverse Sympletic Finite Fourier Transform, ISFFT), and then converted into a time-domain sampling point to be transmitted through one-dimensional inverse fast Fourier transform (Inverse Fast Fourier Transform, IFFT) and serial-parallel conversion of the symbol level.

Fig. 4 is a schematic processing flow diagram of a transceiver end of the OTFS multi-carrier system provided in the embodiment of the present application, and as shown in fig. 4, a receiver end of the OTFS system is approximately an inverse process of a transmitter end: after the time domain sampling points are received by a receiver, the time domain sampling points are subjected to parallel conversion and one-dimensional fast Fourier transform (Fast Fourier Transform, FFT) at a symbol level, firstly transformed into waveforms on a time-frequency domain plane, then subjected to two-dimensional octave Fourier transform (Sympletic Finite Fourier Transform, SFFT), transformed into waveforms on a delay Doppler domain plane, and then subjected to receiver processing on QAM symbols carried by the delay Doppler domain waveforms: including channel estimation and equalization, demodulation and decoding, etc.

The advantages of OTFS modulation are mainly manifested in the following aspects:

(a) OTFS modulation converts time-varying fading channels in the time-frequency domain between transceivers into deterministic non-fading channels in the delay-doppler domain. In the delay-doppler domain, each symbol in a set of information symbols transmitted at once experiences the same static channel response and SNR.

(b) OTFS systems resolve reflectors in the physical channel by delaying the doppler image and coherently combine the energy from the different reflection paths with a receive equalizer, effectively providing a non-fading static channel response. With the static channel characteristics described above, the OTFS system does not need to introduce closed loop channel adaptation to cope with fast changing channels like an OFDM system, thus improving system robustness and reducing complexity of system design.

Since the number of states of delay-doppler in the delay-doppler domain is much smaller than the number of time-frequency states of the time-frequency domain, the channels in an OTFS system can be expressed in a very compact form. The OTFS system has less channel estimation overhead and is more accurate.

Another advantage of OTFS is that it should be on extreme doppler channels. By analyzing the delay-doppler image under appropriate signal processing parameters, the doppler characteristics of the channel will be fully rendered, thus facilitating signal analysis and processing in doppler-sensitive scenarios (e.g., high-speed movement and millimeter waves).

Therefore, a completely new method can be adopted for channel estimation in the OTFS system. The transmitter maps the pilot pulse on the delay Doppler domain, and the receiver estimates the channel response h (v, tau) of the delay Doppler domain by utilizing the delay Doppler image analysis of the pilot frequency, so that the channel response expression of the time-frequency domain can be obtained according to the relation in figure 3, and the signal analysis and the signal processing are convenient.

Fig. 5 is a schematic diagram of pilot mapping of a delay-doppler domain provided in an embodiment of the present application; as shown in fig. 5, which is the manner in which pilot mapping over the delay-doppler domain can take place, the transmitted signal in fig. 5 is represented by a pilot signal located at (l _p ，k _p ) Is a single point pilot (numbered 1 small square), and the area around it is (2 l) _τ +1)(4k _v Guard symbol of +1) -1 (unshaded part) and MN- (2 l) _τ +1)(4k _v +1) (area other than the guard symbol). On the receiving side, two offset peaks (hatched portions) appear in the guard band of the delay-doppler-domain lattice point, meaning that the channel has two secondary paths with different delay doppler in addition to the primary path. The delay-doppler domain expression of the channel, i.e., h (v, τ), is obtained by measuring the amplitude, delay, and doppler parameters of all the secondary paths.

In particular, in order to prevent the data at the received signal lattice from contaminating the pilot symbols, resulting in inaccurate channel estimation, the guard symbol area should satisfy the following conditions:

l _τ ≥τ _max MΔf，k _v ≥v _max NΔT； (7)

wherein τ _max And v _max Maximum delays for all paths of the channel, respectivelyAnd a maximum doppler shift.

The example in fig. 5 corresponds to a single port scenario, i.e. only one set of reference signals needs to be transmitted. In modern multi-antenna systems, multi-stream data can be transmitted simultaneously by utilizing a plurality of antenna ports, so that the space freedom degree of the antennas is fully utilized, and the purposes of acquiring space diversity gain or improving the throughput of the system are achieved.

Fig. 6 is a schematic diagram of mapping of a multi-port reference signal in a delay-doppler domain according to an embodiment of the present application, where multiple pilots need to be mapped in a re-delay-doppler plane when multiple antenna ports exist, thus resulting in the pilot mapping method shown in fig. 6.

In fig. 6, 24 antenna ports correspond to 24 pilot signals. Wherein each pilot signal takes the form of fig. 5, i.e. a pattern of center point impulse signals plus two side guard symbols. Wherein the number of delay-Doppler domain REs (resource elements) occupied by a single pilot is (2 l) _τ +1)(4k _v +1). If there are P antenna ports, considering that guard bands of adjacent antenna ports can be multiplexed, the pilot placement is assumed to be adopted in the delay dimension P ₁ In the Doppler dimension P ₂ And satisfies p=p ₁ P ₂ The total resource overhead of the pilot is [ P ] ₁ (l _τ +1)+l _τ ][P ₂ (2k _v +1)+2k _v ]。

Fig. 7 is a schematic diagram of a reference signal and a mapping manner thereof according to an embodiment of the present application, and as shown in fig. 7, PDCCH/PDSCH-DMRS is used to demodulate messages of a control/data portion, respectively. The receiving side firstly transforms the received sampling points to the TF domain, then carries out channel estimation in the TF domain through the known DMRS, and carries out equalization by utilizing the result after the channel estimation. Because the cost of DMRS and the available resources of data need to be balanced, limited DMRS is used to estimate TF domain channels in the entire time slot, which inevitably results in sparse mapping and interpolation operation. Based on this, DMRS is embodied in a sparse mapping of the time and frequency domains in the radio frame and covers as much as possible the entire bandwidth to mitigate the effects of frequency selective fading.

The channel state information reference signals (Channel State Information Reference Signal, CSI-RS) are mainly used to measure channel state information (Channel State Information, CSI) of the channel and to perform beam management. The receiving side can obtain some key parameters of the physical Layer, such as delay, doppler and reference signal received power (Reference Signal Received Power, RSRP), etc., through direct measurement, and then calculate and obtain measurement quantities defined by the protocol according to an algorithm specified by the protocol, for example, channel quality indication (Channel quality Indicator, CQI), precoding matrix indication (Precoding matrix Indicator, PMI), rank Indicator (RI), CSI-RS resource indication (CSI-RS Resource Indicator, CRI), layer indication (Layer Indicator, LI), etc. CSI-RS are classified into NZP (non-zero-power) -CSI-RS, which are CSI-RS latter signals generated based on Gold sequences, and ZP (zero-power) -CSI-RP, which can be considered as CSI-RS "signals" with zero power transmitted on the CSI-RS port defined by the protocol. With these two signals, CSI-RS based measurements can be divided into two types of measurements, one is called CM (channel measurement), i.e. channel measurement; the other is called IM (interference measurement), i.e. interference measurement. CM measurement, i.e., mainly measuring the aforementioned various measurement quantities, needs to use two CSI-RS of Non-Zero Power (NZP)/Zero Power (ZP); whereas interference measurements (Intereference Measurement, IM) mainly measure inter-cell signal interference, only ZP-CSI-RS measurements need to be utilized.

The phase tracking reference signal (Phase Tracking Reference Signal, PT-RS) is used to measure phase noise superimposed on the signal as it is transmitted and received by hardware non-idealities, embodied as a phase rotation of the receiving constellation relative to the transmitting constellation. In the OFDM system, since the phase noise generated by the hardware has the characteristics of high inter-subcarrier correlation and low inter-symbol correlation, the PT-RS defined by the communication system also correspondingly has the characteristics of sparse frequency domain mapping and dense time domain mapping as shown in fig. 7.

Fig. 8 is a schematic diagram of a second type of reference signal and its mapping method provided in the embodiment of the present application, and a more specific type of reference signal is a positioning reference signal, i.e. P (positioning) -RS, which exists as an optional characteristic of NR. The mapping of the P-RS is shown in fig. 8. Positioning measurement by using P-RS depends on the following key measurement quantities: 1) RSRP, estimating the distance between the receiving side and the transmitting side according to the mapping relation of the channel model by utilizing the attenuation degree of the electromagnetic wave reflected by the RSRP; 2) The arrival angle AoD (angle of departure) of the received signal estimates the azimuth of the receiving side with respect to the transmitting side. Based on the need to estimate AoD, the transmitting side needs to frequently adjust the transmit beam to obtain fine angular resolution, so the P-RS has a mapping on each OFDM symbol. Meanwhile, the measurement accuracy of RSRP is related to the number of sample points of RS, so that the cost, the measurement effect and the requirement of multi-user resource multiplexing are weighed by adopting a comb-4/6 sparse mapping mode on a frequency domain.

The definition of the mapping rule and the measurement method of various pilots well meets the requirement of signal processing of a receiving side, and the defects are that: the variety of the reference signals is more, and a set of independent configuration and indication flow is required to be designed for each reference signal, so that the protocol design is very complex; different mapping modes are defined for reference signals with different functions, multiplexing of the reference signals is not considered, and therefore resource expenditure is high; the non-uniform reference signal design makes the frame structure need to be adjusted as required frequently, and the signaling indication overhead is larger.

In order to overcome the above drawbacks, embodiments of the present application provide a method, an apparatus, and a device for interference measurement. The interference measurement method, device and equipment provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings by some embodiments and application scenarios thereof.

Fig. 9 is one of flow diagrams of an interference measurement method according to an embodiment of the present application, as shown in fig. 9, the interference measurement method includes the following steps 910 to 920:

step 910, a receiving side receives a signal, where the signal includes a second pilot frequency sent by an interfering sending side, and the interfering sending side is an interference source when the receiving side performs receiving measurement on a first pilot frequency of the sending side;

Step 920, the receiving side performs interference measurement on the interfering transmitting side, where the interference measurement includes measurement on the second pilot;

Specifically, in order to overcome the defect of large measurement overhead caused by more types of reference signals in the prior art, the embodiment of the application can realize the transmission of the first pilot frequency based on the OTFS system; the interference measurement and control method based on the OTFS is realized under the framework of single-point pulse or sequence pilot frequency of the delay Doppler domain. Therefore, the excessive definition and tedious interpretation of the reference signals in the communication system can be avoided, and the purposes of saving pilot frequency overhead and signaling overhead can be achieved.

Specifically, in the embodiment of the present application, pilot mapping in the DD domain may be used for interference management. If the received interference of the signal on the receiving side is considered to be part of the equivalent channel, the estimation and cancellation of the interference is also essentially part of the generalized channel estimation and equalization. Thus, channel estimation equalization is performed in what domain, and interference management can be performed in what domain. Thus, interference measurements made in the TF domain in OFDM systems can be migrated to the DD domain in OTFS systems.

In a communication system, the embodiments of the present application may utilize IM-CSI-RS (ZP-CSI-RS of a particular configuration) for interference management. Because the modulation symbols of the OFDM system are multiplexed on the time-frequency domain, the interference power measurement (i.e. the interference measurement) can be carried out on blank resources (i.e. reserved IM-CSI-RS positions) at specific positions in a time slot, so that the interference size on specific time-frequency resources can be measured approximately, and the interference measurement can be completed.

Optionally, the transmitting side and the receiving side are a pair of communication nodes performing wireless communication;

optionally, the interfering transmitting side is the source of interference for the receiving side to measure.

For example, the receiving side may be UE, and the transmitting side may be a base station of the cell where the UE is located; and the interfering transmitting side may be a neighbor base station.

Optionally, the transmitting side may first send an initial signal to the receiving side, but when the initial signal is received and measured by the receiving side, the receiving side may receive a signal that includes the second pilot frequency sent by the interfering transmitting side and the initial signal, so that the receiving side may measure the second pilot frequency at a measurement location, that is, implement interference measurement on the interfering transmitting side;

Furthermore, in the embodiment of the present application, by configuring IM-CSI-RS of different resource positions, statistical characteristics of interference distribution in resources occupied by the subframe may be obtained, so as to be used for performing interference cancellation by a receiver algorithm or for performing interference control by information reporting.

Optionally, in the case that the interfering transmitting side adopts an OTFS system, the receiving side performs interference measurement on the interfering transmitting side, including:

the receiving side performs interference measurements on the interfering transmitting side in the delay-doppler domain.

Specifically, in the case that the interference transmitting side adopts an OTFS system, that is, the receiving side, the transmitting side and the interference transmitting side all adopt OTFS systems;

specifically, for interference management between OTFS systems, since the modulation symbols thereof are mapped in the Delay-Doppler (DD), the orthogonality of the resource allocation is also reflected in the DD domain. Thus, the measurement and management of interference can be done entirely in the DD domain.

Specifically, for OTFS systems, since interference on a part of delay-doppler domain resource element (D-RE) resources on the DD domain is reflected on TF domain as interference on all REs distributed in the slot after ISFFT, performing interference measurement on TF domain necessarily needs to traverse the entire time-frequency resource grid. And the measurement in the DD domain only needs to be carried out on the interested D-RE resource.

Therefore, in the embodiment of the present application, in the case where the receiving side, the transmitting side, and the interfering transmitting side all adopt the OTFS system, the receiving side may perform interference measurement on the interfering transmitting side in the delay-doppler domain.

Optionally, the receiving side performs interference measurement on the interfering transmitting side in the delay-doppler domain, including:

the receiving side determines target configuration information required by the interference measurement;

the receiving side determines that the interference measurement is triggered;

the receiving side performs interference measurement on the interfering transmitting side in the delay-doppler domain based on the target configuration information.

Alternatively, in the case where the receiving side performs interference measurement on the interfering transmitting side, the flow of interference management may be triggered by the transmitting side;

Alternatively, in the case of performing interference measurement on the interfering transmitting side, the receiving side may first determine target configuration information required for the interference measurement, for example, may determine the target configuration information based on the first indication information on the transmitting side;

optionally, the receiving side may further determine that the interference measurement is triggered after determining the target configuration information; for example, it may be determined that the interference measurement is triggered directly because of the receipt of the target configuration information;

alternatively, the receiving side may perform interference measurement on the interfering transmitting side in the delay-doppler domain based on the target configuration information after determining that interference measurement is triggered.

Optionally, the receiving side determines target configuration information required for the interference measurement, including:

the receiving side receives first indication information sent by the sending side, wherein the first indication information is used for indicating the target configuration information;

the receiving side determines the target configuration information based on the first indication information.

Optionally, when the flow of interference management is triggered by the transmitting side, when the receiving side determines the target configuration information required by the interference measurement, the receiving side may determine the target configuration information based on the first indication information after receiving the first indication information sent by the transmitting side and used for indicating the target configuration information.

Optionally, the receiving side determines that the interference measurement is triggered, including at least one of:

after the receiving side receives the first indication information, the receiving side determines that the interference measurement is triggered;

the receiving side determines that the interference measurement is triggered under the condition that the signal-to-interference-plus-noise ratio SINR is larger than a first threshold, wherein the SINR is obtained based on the reception measurement of the first pilot frequency;

the receiving side determines that the interference measurement is triggered if it is determined that the receiver error rate is greater than a second threshold.

Optionally, in the case where the flow of interference management is triggered by the transmitting side, the receiving side may determine that interference measurement is triggered after receiving the first indication information for indicating the target configuration information;

for example, part or all of the target configuration information may be transmitted to the receiving side by the transmitting side through the first indication information, wherein the target configuration information may be information for indicating the interference measurement location;

the transmitting side and the interfering transmitting side can exchange pilot frequency configuration information between each other through a specific communication protocol, for example, when the transmitting side and the interfering transmitting side are both base stations, they can exchange pilot frequency configuration information through an X2 interface;

Optionally, after transmitting part or all of the target configuration information, the transmitting side may send the remaining target configuration information again to trigger interference measurement of the receiving side;

alternatively, the transmitting side may directly determine that the interference measurement is triggered after transmitting part or all of the target configuration information to the receiving side.

Alternatively, the flow of interference management may be triggered by the receiving side itself;

optionally, the receiving side determines that the interference measurement is triggered if it is determined that the signal to interference plus noise ratio SINR is greater than a first threshold;

for example, part or all of the target configuration information may be transmitted to the receiving side by the transmitting side through the first indication information, wherein the target configuration information may be information for indicating the interference measurement location; subsequently, the receiving side may determine that the interference measurement is triggered if it is determined that the signal to interference plus noise ratio SINR is greater than a first threshold; further, interference measurement on the interference transmitting side may be performed in the delay-doppler domain based on the target configuration information.

Optionally, the receiving side determines that the interference measurement is triggered if it is determined that the receiver error rate is greater than a second threshold;

For example, part or all of the target configuration information may be transmitted to the receiving side by the transmitting side through the first indication information, wherein the target configuration information may be information for indicating the interference measurement location; the receiving side may then determine that the interference measurement is triggered if it is determined that the receiver error rate is greater than a second threshold, and may then perform the interference measurement on the interfering transmitting side in the delay-doppler domain based on the target configuration information.

the receiving side determines that the interference measurement is triggered;

Alternatively, in the case where the receiving side performs interference measurement on the interfering transmitting side, the flow of interference management may be triggered by the receiving side first and then acquire the target configuration information;

alternatively, in the case of performing an interference measurement on the interfering transmitting side, the receiving side may first determine that the interference measurement is triggered; for example, it may be determined that an interference measurement is triggered based on information such as signal-to-noise ratio;

Optionally, the receiving side may further determine target configuration information required for the interference measurement after determining that the interference measurement is triggered; for example, after the target configuration information is requested to the transmitting side, the target configuration information is determined based on the first indication information returned by the transmitting side;

alternatively, the receiving side may perform interference measurement on the interfering transmitting side in the delay-doppler domain based on target configuration information required for interference measurement after determining the target configuration information.

optionally, in the case where the flow of interference management is triggered by the receiving side, the receiving side may determine that the interference measurement is triggered if it is determined that the signal-to-interference-plus-noise ratio SINR is greater than a first threshold;

For example, the receiving side may determine that the interference measurement is triggered in case it is determined that the signal to interference plus noise ratio SINR is greater than a first threshold; then, target configuration information can be requested to a transmitting side, and part or all of the target configuration information returned by the transmitting side through the first indication information can be acquired, wherein the target configuration information can be information for indicating an interference measurement position; interference measurements on the interfering transmission side may then be performed in the delay-doppler domain based on the target configuration information in turn.

for example, the receiving side may determine that the interference measurement is triggered in case it is determined that the receiver error rate is greater than a second threshold; then, target configuration information can be requested to a transmitting side, and part or all of the target configuration information returned by the transmitting side through the first indication information can be acquired, wherein the target configuration information can be information for indicating an interference measurement position; interference measurements on the interfering transmission side may then be performed in the delay-doppler domain based on the target configuration information in turn.

the receiving side sends an interference measurement configuration request signaling to the sending side, wherein the interference measurement configuration request signaling is used for requesting the target configuration information;

the receiving side receives first indication information sent by the sending side based on the interference measurement configuration request signaling, wherein the first indication information is used for indicating the target configuration information;

Optionally, when the flow of interference management is triggered by the receiving side, the receiving side may send an interference measurement configuration request signaling to the transmitting side after determining that the interference measurement is triggered, so as to request the target configuration information;

optionally, after receiving the interference measurement configuration request signaling, the transmitting side may send first indication information based on the interference measurement configuration request signaling, where the first indication information is used to indicate the target configuration information requested by the receiving side;

optionally, after the receiving side receives the first indication information, the target configuration information may be determined based on the first indication information.

Optionally, the interference measurement configuration request signaling carries at least one of:

uplink control signaling UCI, uplink reference signal SRS, or uplink MAC CE.

Optionally, the interference measurement configuration request signaling carries one or more of:

uplink control signaling (Uplink Control Information, UCI), or uplink reference signals (Sounding Reference Signal, SRS), or control units for uplink medium access control (Medium Access Control Control Element, MAC CE).

Optionally, the target configuration information includes a resource location of the second pilot in a delay-doppler-domain resource grid, and a resource range of the interference measurement.

Optionally, in a case where the target configuration information is indicated to the receiving side by the first indication information, or in a case where the target configuration information is indicated to the receiving side by the first information based on the request after the request from the receiving side to the transmitting side, the target configuration information may include a resource position of the second pilot in the delay-doppler-domain resource grid, and a resource range of the interference measurement;

specifically, the second pilot frequency may be determined after exchanging the pilot frequency configuration information (the resource position of the first pilot frequency and/or the resource position of the second pilot frequency) between the transmitting side and the interfering transmitting side through a specific communication protocol after the resource position of the delay-doppler-domain resource grid and the resource range of the interference measurement, for example, when both the transmitting side and the interfering transmitting side are base stations, the respective pilot frequency configuration information may be exchanged through the X2 interface, where the resource position of the second pilot frequency in the delay-doppler-domain resource grid may be included, and the resource range (interference measurement Gap) in which the receiving side may perform the interference measurement may also be included.

Optionally, the target configuration information includes a time length of the interference measurement, a frame structure of the interference transmitting side, and a resource position of the second pilot in a delay-doppler domain resource grid;

and the first signal is transmitted from the transmitting side to the receiving side.

Optionally, in a case where the target configuration information is indicated to the receiving side by the first indication information, or in a case where the target configuration information is indicated to the receiving side by the first information based on the request after the request from the receiving side to the transmitting side, the target configuration information may include a time length of the interference measurement, a frame structure of the interference transmitting side, and a resource location of the second pilot in the delay-doppler-domain resource grid;

specifically, the time length of interference measurement, the frame structure of the interference transmitting side, and the resource position of the second pilot frequency in the delay-doppler-domain resource grid may be determined after interaction between the transmitting side and the interference transmitting side through a specific communication protocol, for example, when both the transmitting side and the interference transmitting side are base stations, the above information may be interacted through the X2 interface, where the time length of interference measurement, the frame structure of the interference transmitting side, and the resource position of the second pilot frequency in the delay-doppler-domain resource grid may be included.

For example, the signaling sent by the sender side includes two parts:

(1) The length of time of the interference measurement may be in time slots/physical time units. And in the configured measurement time, the transmitting side does not transmit the downlink signal to the receiving side, or the transmitting side does not transmit the downlink signal to the receiving side at a specific position on the DD domain resource grid.

(2) The frame structure of the interference transmitting side includes the sizes of M and N, where M represents the number of resources of the delay dimension corresponding to the frame structure of the interference transmitting side, and N represents the number of resources of the doppler dimension corresponding to the frame structure of the interference transmitting side, and optionally a second pilot transmitting position (the resource position of the second pilot in the delay-doppler-domain resource grid).

The signaling sent by the sending side may be a message for a specific user, such as downlink control information (Downlink Control Information, DCI), a radio resource control (Radio Resource Control, RRC) message, etc.

Wherein the interference measurement area is determined by the receiving side from these a priori information in the signaling of the transmitting side. Firstly, blind detection is carried out on the area of the interference transmitting side transmitting the reference signal, and the receiving side carries out interference channel measurement on the determined pilot frequency area of the interference transmitting side.

Alternatively, in the case where the time length of the interference measurement is explicitly indicated, the transmitting side may not perform transmission of the initial signal for this time length; namely, no first signal is transmitted in the measurement time, wherein the first signal is a signal transmitted from the transmitting side to the receiving side; to ensure that the interference on the interfering transmitting side is measured by the receiving side during interference measurement.

and the second pilot frequency does not transmit a first signal in the resource grid corresponding to the delay Doppler domain in the resource position of the delay Doppler domain resource grid, and the first signal is a signal sent from the sending side to the receiving side.

Optionally, in the case that the resource position of the second pilot frequency in the delay-doppler domain resource grid is explicitly indicated, the transmitting side may not perform transmission of the initial signal in the resource position of the second pilot frequency in the delay-doppler domain resource grid; namely, the second pilot frequency has no transmission of a first signal in the resource position of the delay Doppler domain resource grid, and the first signal is a signal sent by the sending side to the receiving side; the receiving side is ensured to measure the interference aiming at the interference transmitting side in the measuring range corresponding to the resource position of the second pilot frequency in the delay Doppler domain resource grid.

Optionally, the first indication information is carried in at least one of:

SSB, PBCH, SIB, DCI, RRC or MAC CE.

Optionally, the first indication information may be carried in one or more of:

SSB, or PBCH, or SIB, or DCI, or RRC or MAC CE.

Optionally, the first indication information includes at least one of:

a first index, where the first index is used to indicate the target configuration information corresponding to the first index in a configuration information table, where the configuration information table includes at least one second index and at least one configuration information, one second index corresponds to one configuration information, and different second indexes correspond to different configuration information; the first index is one of the at least one second index, and the target configuration information is one of the at least one configuration information;

and the first direct indication information is used for directly indicating the target configuration information.

Alternatively, in the case where the target configuration information is indicated to the receiving side by the first indication information, or in the case where the target configuration information is indicated to the receiving side by the first information based on the request by the receiving side after the request by the receiving side, the first indication information may directly include the target configuration information;

Alternatively, in the case where the target configuration information is indicated to the receiving side by the first indication information, or in the case where the transmitting side indicates to the receiving side by the first information based on the request after the target configuration information is requested by the receiving side to the transmitting side, the first indication information may include first direct indication information for directly indicating the target configuration information, such as directly including the target configuration information itself.

Optionally, in a case where the target configuration information is indicated to the receiving side by the first indication information, or in a case where the target configuration information is indicated to the receiving side by the first indication information based on the request from the receiving side to the receiving side after the request from the receiving side, the first indication information may include a first index, where the first index is used to indicate the target configuration information corresponding to the first index in a configuration information table, and the configuration information table includes at least one second index, and at least one configuration information, one second index corresponds to one configuration information, and different second indexes correspond to different configuration information; the first index is one of the at least one second index, and the target configuration information is one of the at least one configuration information;

For example, the indication configuration information table may include a second index: "index 1", "index 2", and "index 3", wherein the configuration information corresponding to "index 1" is "configuration information a", "the configuration information corresponding to" index 2 "is" configuration information B ", and" the configuration information corresponding to "index 3" is "configuration information C", and if the first index indicates "index 2", it may be determined that the target configuration information includes "configuration information B" corresponding to "index 2".

For example, patterns indicating N interference power measurements GAP by the table look-up method can be utilized

A bit indicates the first index.

the receiving side directly determines the target configuration information.

Optionally, in the case that the flow of interference management is triggered by the receiving side, the receiving side may determine the target configuration information directly by itself, for example, may determine the IM detection region (including the position of the second pilot in the delay-doppler-domain resource grid) directly by itself, and may be used as a measurement region for interference measurement in the delay-doppler-domain resource grid.

Optionally, the method further comprises:

the receiving side sends the target configuration information to the sending side, wherein the target configuration information is used for indicating the interference sending side to configure the second pilot frequency based on the target configuration information through the sending side.

Optionally, under the condition that the flow of interference management is triggered by the receiving side, the receiving side can directly determine target configuration information by itself, on the basis, the receiving side needs to send the target configuration information determined by itself to the receiving side, and after knowing the target configuration information determined by itself, the transmitting side needs to further instruct the interfering transmitting side, so that the interfering transmitting side determines the configuration of the second pilot frequency, namely, configures the second pilot frequency in the IM detection area for interference measurement, so as to ensure that the receiving side can accurately measure the second pilot frequency in the resource range of interference measurement.

the receiving side determines a measurement area of the interference measurement in a delay Doppler domain resource grid based on the target configuration information;

the receiving side performs interference measurement on the interference transmitting side in the measurement area.

Optionally, in a case that the receiving side performs interference measurement on the interfering transmitting side in the delay-doppler domain, the receiving side may determine a measurement region of the interference measurement in a delay-doppler domain resource grid based on target configuration information; interference measurements on the interfering transmission side can then be performed in the measurement area.

Optionally, the receiving side determines a measurement area of the interference measurement in a delay-doppler-domain resource grid based on the target configuration information, including:

the receiving side determines the resource position of the second pilot frequency in a delay Doppler domain resource grid based on the target configuration information;

the receiving side determines the measurement area as the resource position of the second pilot frequency in a delay Doppler domain resource grid; and the resource position of the second pilot frequency of the interference transmitting side in the delay Doppler domain resource grid is not overlapped with the resource grid range corresponding to the first pilot frequency.

Optionally, when the receiving side determines the measurement area of the interference measurement in the delay-doppler-domain resource grid based on the target configuration information, the receiving side may first determine, based on the target configuration information, a resource position of the second pilot frequency in the delay-doppler-domain resource grid, and may determine that the measurement area is the resource position of the second pilot frequency in the delay-doppler-domain resource grid; and the resource position of the second pilot frequency of the interference transmitting side in the delay Doppler domain resource grid is not overlapped with the resource grid range corresponding to the first pilot frequency.

Fig. 10 is one of diagrams of pilot mapping in a delay-doppler domain resource grid provided in an embodiment of the present application, fig. 11 is the second of diagrams of pilot mapping in a delay-doppler domain resource grid provided in an embodiment of the present application, fig. 12 is one of diagrams of measurement areas in a delay-doppler domain resource grid provided in an embodiment of the present application, fig. 13 is the second of diagrams of measurement areas in a delay-doppler domain resource grid provided in an embodiment of the present application, and as shown in fig. 10-13, fig. 10 is a single-point pulse pilot of a DD domain, and it can be seen that DD domain sample distribution on a receiving side becomes the form in fig. 12 after undergoing a channel coupling effect. The cross grain filled part in the thickened frame is not interfered by the offset of the data symbol, so that the cross grain filled part can be used for pilot frequency detection to carry out channel measurement. If the system has interference measurement requirements, a new blank D-RE (the part in the thickened frame in fig. 11, which may be called interference measurement GAP, GAP required for interference measurement, interference measurement range, or interference measurement area) may be introduced in addition to the original GAP in fig. 10 to perform interference measurement, as shown in fig. 11, and the D-RE part additionally introduced in the frame is used for interference measurement. It can be seen that the pilot and data symbol mapping presented in fig. 11, after channel coupling, becomes the form of fig. 13, where the REs in the inner part of the box do not receive any power leakage effect of transmitting pilot and data, and this part of the resources can be used to make accurate interference measurements. Specifically, in the embodiment of the present application, the second pilot transmission on the interference transmitting side may be configured at the position of IM detection surrounded by the box in fig. 13, that is, there is a second pilot signal on the known interference transmitting side at the position of IM detection, so that pilot power component detection on the DD domain lattice point may be performed in the IM detection area, and the interference channel between the interference transmitting side and the receiving side may be estimated.

Further, in order to accurately measure the interference channel matrix, the IM detection region (the resource location of the second pilot in the delay-doppler-domain resource grid) may satisfy the following condition:

the second pilot on the interfering transmit side is in the IM detection region and the maximum delay and Doppler bias due to interfering channel coupling is still in the IM detection region. Therefore, the receiving side needs to know the position of the second pilot frequency of the interfering transmitting side; the transmitting side can adjust the transmitting position of the first pilot frequency of the transmitting side so as to be connected with the second pilot frequency of the interference transmitting side, thereby saving part of Gap cost.

Optionally, the resource position of the second pilot frequency on the interference transmitting side in the delay doppler domain resource grid is not overlapped with the resource grid range corresponding to the first pilot frequency, and the resource position of the second pilot frequency on the interference transmitting side in the delay doppler domain resource grid may be adjacent to or connected with the resource grid range corresponding to the first pilot frequency.

Optionally, the receiving side performs interference measurement of an interfering transmitting side in the delay-doppler domain, including:

the receiving side determines the measurement area in a resource grid range of a delay Doppler domain corresponding to the first pilot frequency;

Alternatively, a more cost-effective transmission scheme may be employed when the topology of the transmitting and receiving nodes in the channel changes slowly. That is, after the interference management flow is triggered, the transmitting side does not transmit pilot frequency in the IM phase, and still transmits data. Fig. 14 is a third schematic diagram of pilot mapping in the delay-doppler-domain resource grid provided in the embodiment of the present application, and fig. 15 is a third schematic diagram of a measurement area in the delay-doppler-domain resource grid provided in the embodiment of the present application, as shown in fig. 14 and 15, an original pilot area (a resource grid range of the delay-doppler domain corresponding to the first pilot) (pilot pulse+gap) may be multiplexed into an IM detection area, and channel estimation of a cell present frame on the receiving side of transmitting pilot in this multiplexed area by the interference transmitting side may be solved in other manners: such as direct channel estimation with the last frame if the channel of consecutive frames is unchanged, or channel prediction if the channel of consecutive frames is changed but regular.

Optionally, when the receiving side determines, based on the target configuration information, a measurement area of the interference measurement in a delay-doppler-domain resource grid, the receiving side may determine the measurement area within a range of a delay-doppler-domain resource grid corresponding to the first pilot.

Optionally, the determining, by the receiving side, the measurement area within a resource grid range of the delay-doppler domain corresponding to the first pilot frequency includes:

the receiving side determines the measurement area as a resource grid range corresponding to the first pilot frequency based on preset;

the receiving side is preconfigured based on a protocol, and the measuring area is determined to be a resource grid range corresponding to the first pilot frequency;

and the receiving side determines the measurement area as a resource grid range corresponding to the first pilot frequency based on the second indication information of the transmitting side.

Alternatively, as shown in fig. 9, when the receiving side determines the measurement area within the range of the resource grid of the delay-doppler domain corresponding to the first pilot, the interference pilot measurement area may coincide with the original pilot. In practice, the delay and Doppler of the interference channel and the communication channel may be different, and consideration is also needed in configuring Gap.

Optionally, in the case that the receiving side determines the measurement area within the range of the resource grid of the delay-doppler domain corresponding to the first pilot frequency, the interference measurement may be triggered by the receiving side or by the transmitting side;

alternatively, in the case that the receiving side determines the measurement region within the range of the resource grid of the delay-doppler domain corresponding to the first pilot, the prior information about the position of the pilot of the interfering transmitting side may be configured to the receiving side by the transmitting side. Theoretically, for a particular receiving side, it is assumed that the maximum delay and Doppler of the communication channel of the transmitting side can be

And->

The maximum delay and Doppler of the interfering channel on the interfering transmit side can be + ->

And->

When->

And

the Gap required for the interference channel measurement needs to be reconfigured. In practice, in the case of the transmitting side,

and->

The channel reciprocity can be fed back by a receiving side or obtained through uplink measurement; but the transmitting side does not know the channel prior information between the interfering transmitting side and the receiving side +.>

And->

Therefore, in determining the actually required Gap, the receiving side may determine the measurement region based on a preset, or a preset based on a protocol, or a second instruction information based on the transmitting side.

Optionally, the receiving side may determine, based on a preset, that the measurement area is a resource grid range corresponding to the first pilot frequency;

optionally, the receiving side may determine, based on a protocol pre-configuration, that the measurement area is a resource grid range corresponding to the first pilot frequency;

optionally, the receiving side may determine, based on the second indication information of the transmitting side, that the measurement area is a resource grid range corresponding to the first pilot frequency.

Alternatively, the Gap region (measurement region) required for interference measurement may directly follow the resource grid region of the first pilot without indication.

Alternatively, the transmitting side may directly transmit a 1-bit user-specific message to trigger interference management, indicating that the receiving side measures interference in the resource grid region of the first pilot.

the receiving side determines target position coordinates of the measurement area based on third instruction information of the transmitting side.

Optionally, when the receiving side determines the measurement area within the resource grid range of the delay-doppler domain corresponding to the first pilot frequency, the measurement area may be a part of the resource grid range corresponding to the first pilot frequency, and then the receiving side may determine the target position coordinate of the measurement area based on the third indication information of the transmitting side.

For example, the interference measurement region has J sets of selectable values. Assume that the first pilot position is (k _p ,l _p )，(k _p ,l _p ) Representing the coordinates, k, of the pilot burst on the delay-doppler-domain resource grid _p Corresponding to Doppler dimension, l _p Corresponding delay dimensions; the Gap region is [ k ] _p -2k _v ,k _p +2k _v ]And [ l ] _p -l _v ,l _p +l _v ]，[k _p -2k _v ,k _p +2k _v ]Representing the coordinate range in the Doppler dimension, [ l ] _p -l _v ,l _p +l _v ]Representing a range of coordinates in the delay dimension, the set of target position coordinate selectable values may be: g= { [ k _p -2k _v -k _j ,k _p +2k _v +k _j ],[l _p -l _v -l _j ,l _p +l _v +l _j ],j＝0,1,2,…,J-1,k ₀ ＝0,l ₀ ＝0,k _j ≥0,l _j ≥0}。

Optionally, the third indication information includes:

a third index for indicating the target position coordinate corresponding to the second index in at least one set of position coordinates, wherein the at least one set of position coordinates includes at least one fourth index, and at least one position coordinate, one of the fourth indices corresponds to one of the position coordinates, and a different one of the fourth indices corresponds to a different one of the position coordinates; the third index is one of the at least one fourth index, and the target position coordinate is one of the at least one position coordinate;

and second direct indication information, wherein the second direct indication information is used for directly indicating the target position coordinates.

Alternatively, the third indication information sent by the sending side may be a broadcast message, such as a PBCH, SIB message in SSB, or a user specific message, such as DCI, RRC message, or the like. The target position coordinates of the measurement area are configured with these optional messages in the following way:

(1) The target position coordinates (i.e. the second direct indication information) of the measurement area are directly configured with a user-specific message.

(2) Broadcasting optional values of the J-group Gap region with broadcast messages, transmitting with user-specific messages

The bit indicates a specific option (i.e., the third index).

Alternatively, the transmitting side may directly transmit the target position coordinates of the measurement region to the receiving side through the third indication information;

alternatively, the third indication information may include second direct indication information for directly indicating the target position coordinates of the measurement region.

Optionally, the third indication information may include a third index, where the third index is used to indicate the target position coordinate corresponding to the second index in at least one position coordinate set, where the at least one position coordinate set includes at least one fourth index, and at least one position coordinate, one fourth index corresponds to one position coordinate, and different fourth indexes correspond to different position coordinates; the third index is one of the at least one fourth index, and the target position coordinate is one of the at least one position coordinate;

for example, the indication configuration information table may include a fourth index: "index 4", "index 5", and "index 6", wherein the position coordinate corresponding to "index 4" is "position coordinate D", "the position coordinate corresponding to" index 5 "is" position coordinate E ", and the position coordinate corresponding to" index 6 "is" position coordinate F ", and if the third index indicates" index 4", it can be determined that the target position coordinate of the measurement region includes" position coordinate D "corresponding to" index 4 ".

Optionally, the method further comprises:

the receiving side sends fourth indication information to the sending side, wherein the fourth indication information is used for indicating whether the target position coordinates are available.

Optionally, the receiving side may send fourth indication information to indicate whether the target position coordinate is available by the sending side;

alternatively, the receiving side may transmit 1-bit feedback information (fourth indication information) indicating whether the currently selected interference measurement region is appropriate (whether the target position coordinates are available). The transmitting side may reconfigure the interference measurement region according to the feedback message, and may also be referred to as an interference measurement Gap region or an interference measurement range.

For example, assume that the current configuration is { [ k ] _p -2k _v -k _j ,k _p +2k _v +k _j ],[l _p -l _v -l _j ,l _p +l _v +l _j ]When the transmitting side receives the fourth indication information as 0, the configuration becomes { [ k ] _p -2k _v -k _j+1 ,k _p +2k _v +k _j+1 ],[l _p -l _v -l _j+1 ,l _p +l _v +l _j+1 ]And indicated to the receiving side. When the fourth indication information is 1, the configuration remains unchanged, and the indication to the receiving side or the non-indication can be performed through 1 bit.

Optionally, in the case that the interference transmitting side adopts an OFDM system, a first time unit for indicating the interference measurement is included in the signal;

wherein the receiving side performs interference measurement on the interfering transmitting side, including:

The receiving side determines the time-frequency domain resource position corresponding to the second pilot frequency;

the receiving side performs interference measurement on the interference transmitting side based on the time-frequency domain resource positions corresponding to the first time unit and the second pilot frequency.

Optionally, an OTFS system is used on both the receiving side and the transmitting side, and an OFDM system is used on the interfering transmitting side, i.e. for an OTFS and OFDM coexistence system, the problem faced by the interference control needs is more complex. In a communication system, since modulation symbols are mapped to TF domains, interference on part of subcarriers in TF domains is reflected as interference in DD domains after SFFT. Thus, for OTFS systems, if the interference from the OFDM system is to be measured, the D-RE resources within the entire slot need to be measured.

Specifically, since the pilot mapping mode of the OFDM system is to hash the reference signal sequence according to a certain pattern on the TF domain resource grid, when the reference signal sequence is transformed to the DD domain by SFFT, the transformed reference signal sequence is spread over the entire DD domain resource grid. If the reference signal of the TF domain and the data are orthogonally multiplexed in the same subframe at this time, the reference signal and the data are non-orthogonally overlapped on the D-RE after being transformed to the DD domain, which is unfavorable for detection. Thus, for co-existence systems of OTFS and OFDM, interference measurements can be made in the TF domain.

Specifically, when the receiving side performs interference measurement in the TF domain, the receiving side may first determine a time-frequency domain resource location corresponding to the second pilot frequency; and then, based on the time-frequency domain resource positions corresponding to the first time unit and the second pilot frequency, performing interference measurement on the interference transmitting side.

Optionally, the first time unit is blank, or the first time unit includes the first pilot and transmission data;

the receiving side determining the time-frequency domain resource position corresponding to the second pilot frequency includes:

the receiving side receives sixth indication information sent by the sending side, wherein the sixth indication information is used for indicating a time-frequency domain resource position corresponding to the second pilot frequency;

and the receiving side determines the time-frequency domain resource position corresponding to the second pilot frequency based on the sixth indication information.

Optionally, the receiving side may receive sixth indication information sent by the sending side, where the sixth indication information is used to indicate a time-frequency domain resource location corresponding to the second pilot frequency; the receiving side may then determine a time-frequency domain resource location corresponding to the second pilot based on the sixth indication information.

Alternatively, the first time unit may be an interference measurement subframe, or other communication time units, which is not limited in the embodiments of the present application;

for example, the transmitting side may configure an interference measurement subframe, which is a blank subframe, on which no signal and no data are transmitted on the resources, and the transmitting side may indicate the position of the interference measurement subframe in the radio frame through broadcasting or receiving side dedicated signaling, and trigger the receiving side measurement behavior. Then the receiving side can acquire the position of the second pilot frequency in the TF domain based on the sixth indication information, and then the receiving side can perform neighbor cell interference channel measurement (measurement of the second pilot frequency of the interference transmitting side) at the known pilot frequency position of the TF domain; accurate measurement can be achieved.

For example, the transmitting side may configure an interference measurement subframe, which is a subframe containing only the first pilot, and only transmits the first pilot of the DD domain on its resource; the transmitting side can instruct the position of the interference measurement subframe in the radio frame through broadcasting or receiving side special signaling to trigger the receiving side measurement behavior. Then the receiving side can acquire the position of the second pilot frequency in the TF domain based on the sixth indication information, and then the receiving side can perform neighbor cell interference channel measurement (measurement of the second pilot frequency of the interference transmitting side) at the known pilot frequency position of the TF domain; accurate measurement can be achieved.

For example, the transmitting side may configure an interference measurement subframe, which is a subframe containing only the first pilot, and only transmits the first pilot of the DD domain on its resource; the transmitting side can instruct the position of the interference measurement subframe in the radio frame through broadcasting or receiving side special signaling to trigger the receiving side measurement behavior. Then the receiving side can transform the received signal sample point to DD domain, and the pilot frequency detection method of DD domain is used to obtain DD domain channel, then the component value of received pilot frequency on each RE of TF domain is calculated, and the pilot frequency component is subtracted from the received signal so as to obtain adjacent region interference signal and noise portion; the receiving side may further obtain the position of the second pilot in the TF domain based on the sixth indication information, and the receiving side may further perform neighbor interference channel measurement (measurement for the second pilot on the interference transmitting side) at a known pilot position in the TF domain.

For example, the transmitting side may configure an interference measurement subframe, which is a subframe containing first pilot and data orthogonal to the DD domain resources; the transmitting side can instruct the position of the interference measurement subframe in the radio frame through broadcasting or receiving side special signaling to trigger the receiving side measurement behavior. Then the receiving side can transform the received signal sample point to DD domain, and uses the pilot frequency detection method of DD domain to obtain DD domain channel, and uses the estimated channel to demodulate DD domain data symbol. Further, it is possible to calculate the component values at each RE after the received DD domain pilot data is converted to the TF domain. Subtracting the components from the received sum signal to obtain a neighboring cell interference signal and a noise part; the receiving side may further obtain the position of the second pilot in the TF domain based on the sixth indication information, and the receiving side may further perform neighbor interference channel measurement (measurement for the second pilot on the interference transmitting side) at a known pilot position in the TF domain.

By configuring the interference subframe, the embodiment of the application can avoid introducing extra overhead.

the receiving side determining a time-frequency domain resource position corresponding to the second pilot frequency of the interference transmitting side includes:

and the receiving side performs blind detection and determines the time-frequency domain resource position corresponding to the second pilot frequency.

Optionally, the receiving side may perform blind detection to determine the time-frequency domain resource location corresponding to the second pilot.

for example, the transmitting side may configure an interference measurement subframe, which is a blank subframe, on which no signal and no data are transmitted on the resources, and the transmitting side may indicate the position of the interference measurement subframe in the radio frame through broadcasting or receiving side dedicated signaling, and trigger the receiving side measurement behavior. Then the receiving side can perform blind detection to determine the time-frequency domain resource position corresponding to the second pilot frequency, and then the receiving side can perform neighbor cell interference channel measurement (measurement for the second pilot frequency of the interference transmitting side) at the known pilot frequency position of the TF domain; accurate measurement can be achieved.

For example, the transmitting side may configure an interference measurement subframe, which is a subframe containing only the first pilot, and only transmits the first pilot of the DD domain on its resource; the transmitting side can instruct the position of the interference measurement subframe in the radio frame through broadcasting or receiving side special signaling to trigger the receiving side measurement behavior. Then the receiving side can perform blind detection to determine the time-frequency domain resource position corresponding to the second pilot frequency, and then the receiving side can perform neighbor cell interference channel measurement (measurement for the second pilot frequency of the interference transmitting side) at the known pilot frequency position of the TF domain; accurate measurement can be achieved.

For example, the transmitting side may configure an interference measurement subframe, which is a subframe containing only the first pilot, and only transmits the first pilot of the DD domain on its resource; the transmitting side can instruct the position of the interference measurement subframe in the radio frame through broadcasting or receiving side special signaling to trigger the receiving side measurement behavior. Then the receiving side can transform the received signal sample point to DD domain, and the pilot frequency detection method of DD domain is used to obtain DD domain channel, then the component value of received pilot frequency on each RE of TF domain is calculated, and the pilot frequency component is subtracted from the received signal so as to obtain adjacent region interference signal and noise portion; the receiving side can perform blind detection to determine the time-frequency domain resource position corresponding to the second pilot frequency, and the receiving side can perform neighbor cell interference channel measurement (measurement for the second pilot frequency of the interference transmitting side) at the known pilot frequency position of the TF domain.

For example, the transmitting side may configure an interference measurement subframe, which is a subframe containing first pilot and data orthogonal to the DD domain resources; the transmitting side can instruct the position of the interference measurement subframe in the radio frame through broadcasting or receiving side special signaling to trigger the receiving side measurement behavior. Then the receiving side can transform the received signal sample point to DD domain, and uses the pilot frequency detection method of DD domain to obtain DD domain channel, and uses the estimated channel to demodulate DD domain data symbol. Further, it is possible to calculate the component values at each RE after the received DD domain pilot data is converted to the TF domain. Subtracting the components from the received sum signal to obtain a neighboring cell interference signal and a noise part; the receiving side can perform blind detection to determine the time-frequency domain resource position corresponding to the second pilot frequency, and the receiving side can perform neighbor cell interference channel measurement (measurement for the second pilot frequency of the interference transmitting side) at the known pilot frequency position of the TF domain.

Optionally, the performing interference measurement on the interference transmitting side includes:

and the receiving side measures an interference channel based on the time-frequency domain resource position corresponding to the second pilot frequency.

Optionally, after determining the time-frequency domain resource location corresponding to the second pilot frequency, the receiving side may perform measurement of the interference channel based on the time-frequency domain resource location corresponding to the second pilot frequency.

Optionally, in a case that the first time unit includes the first pilot or in a case that the first time unit includes the first pilot and transmission data, the performing the interference measurement on the interference transmitting side further includes:

the receiving side transforms the received signal to a delay-doppler domain;

the receiving side obtains component values of the first pilot frequency on REs in a TF domain;

subtracting the component value of the first pilot from the received signal to obtain an interference signal and a noise portion.

Optionally, the transmitting side may configure an interference measurement subframe, where the subframe is a subframe containing first pilot and data orthogonal to the DD domain resource; the transmitting side can instruct the position of the interference measurement subframe in the radio frame through broadcasting or receiving side special signaling to trigger the receiving side measurement behavior. Then the receiving side can transform the received signal sample point to DD domain, and uses the pilot frequency detection method of DD domain to obtain DD domain channel, and uses the estimated channel to demodulate DD domain data symbol. Further, it is possible to calculate the component values at each RE after the received DD domain pilot data is converted to the TF domain. Subtracting the components from the received sum signal to obtain a neighboring cell interference signal and a noise part; the receiving side can perform blind detection to determine the time-frequency domain resource position corresponding to the second pilot frequency, and the receiving side can perform neighbor cell interference channel measurement (measurement of the second pilot frequency of the interference transmitting side) at the known pilot frequency position of the TF domain;

Optionally, the transmitting side may configure an interference measurement subframe, where the subframe is a subframe only containing the first pilot frequency, and only the first pilot frequency of the DD domain is sent on the resource of the subframe; the transmitting side can instruct the position of the interference measurement subframe in the radio frame through broadcasting or receiving side special signaling to trigger the receiving side measurement behavior. Then the receiving side can transform the received signal sample point to DD domain, and the pilot frequency detection method of DD domain is used to obtain DD domain channel, then the component value of received pilot frequency on each RE of TF domain is calculated, and the pilot frequency component is subtracted from the received signal so as to obtain adjacent region interference signal and noise portion; the receiving side can perform blind detection to determine the time-frequency domain resource position corresponding to the second pilot frequency, and the receiving side can perform neighbor cell interference channel measurement (measurement for the second pilot frequency of the interference transmitting side) at the known pilot frequency position of the TF domain.

Optionally, the receiving side performs interference measurement on the interfering transmitting side, including:

the receiving side receives seventh indication information sent by the sending side; the seventh indication information is used for indicating a measurement range in a delay-doppler-domain resource grid corresponding to interference measurement, wherein the delay-doppler-domain resource grid range corresponding to the interference measurement is not coincident with the resource grid range corresponding to the first pilot frequency;

The receiving side determines an interference average power based on the received samples in the signal within a measurement range.

Alternatively, the interference measurement may not be a pilot-based interference channel estimate, but may be used only to make an estimate of the neighbor interference power level.

Alternatively, in the case where the receiving side, the transmitting side and the interfering transmitting side all use OTFS systems, or where the receiving side and the transmitting side use OTFS systems, and where the interfering transmitting side uses OFDM systems, the DD domain Gap resources used by the receiving side for interference measurement do not need to overlap with the pilot frequency of the interfering transmitting side and its Gap resources, as shown in fig. 11, a part of blank IM Gap may be added to the right of the Gap resources of the pilot frequency required for communication, and the IM Gap may be configured by the transmitting side without considering the pilot frequency position of the interfering transmitting side. The DD domain sample set received by the receiving side is shown in fig. 12, and the receiving side counts the interference average power in the sample range of the bold frame.

In particular, when the topology position of the receiving node in the channel changes slowly, a sending mode which saves more cost can be adopted. That is, after the interference management flow is triggered, the transmitting side does not transmit pilot frequency in the IM phase, and still transmits data. The original pilot region (pilot burst+gap) can be multiplexed into an IM detection region, and the interference transmission side transmits pilot in this multiplexed region, as shown in fig. 11 and 12. At this time, the channel estimation of the present frame of the receiving side cell may be solved in other ways: such as direct channel estimation with the last frame if the channel of consecutive frames is unchanged, or channel prediction if the channel of consecutive frames is changed but regular.

Meanwhile, the IM Gap can also perform DD domain rate matching. When the information bit number is given, the size of the IM Gap resource is adjusted after the modulation order number, and the D-RE number of the actual bearing data is changed to control the channel coding (LDPC, polar, etc.) to achieve the required code rate.

Fig. 16 is a second flowchart of an interference measurement method according to an embodiment of the present application, as shown in fig. 16, and the method includes the following step 1600:

step 1600, a transmitting side transmits an initial signal, where the initial signal is used for the receiving side to perform reception measurement on a first pilot frequency of the transmitting side;

For example, in the NR system, the transmitting side and the receiving side are the own cell base station and the UE, and the interfering transmitting side is the neighboring cell base station.

Optionally, the method further comprises:

the transmitting side transmits first indication information to the receiving side, wherein the first indication information is used for indicating target configuration information required by the interference measurement.

optionally, in a case where the flow of interference management is triggered by the transmitting side, the transmitting side may send first indication information to the receiving side, so as to indicate target configuration information required by the interference measurement to the receiving side; when the receiving side determines the target configuration information required by the interference measurement, the receiving side may determine the target configuration information based on the first indication information after receiving the first indication information sent by the sending side and used for indicating the target configuration information.

Alternatively, in the case of performing interference measurement on the interfering transmitting side, the receiving side may first determine target configuration information required for the interference measurement, for example, the target configuration information may be determined based on the first indication information on the transmitting side.

Optionally, the method further comprises:

receiving an interference measurement configuration request signaling sent by the receiving side, wherein the interference measurement configuration request signaling is used for requesting the target configuration information;

the transmitting side transmits first indication information based on the interference measurement configuration request signaling, wherein the first indication information is used for indicating the target configuration information.

Under the condition that the flow of interference management is triggered by the receiving side, the receiving side can determine that the interference measurement is triggered under the condition that the SINR (signal to interference plus noise ratio) is larger than a first threshold;

uplink control signaling UCI, uplink reference signal SRS, or uplink MAC CE.

uplink control signaling UCI, or uplink reference signal SRS, or uplink MAC CE. Optionally, the first indication information is carried in at least one of:

SSB, PBCH, SIB, DCI, RRC or MAC CE.

Optionally, the first indication information may be carried in one or more of:

a synchronization signal block (Synchronization Signal and PBCH block, SSB), a physical broadcast channel (Physical broadcast channel, PBCH), a system information block (System Information Block, SIB), downlink control information (Downlink Control Information, DCI), a radio resource control RRC, or a control unit MAC CE for medium access control.

Optionally, the first indication information includes at least one of:

For example, pattern indicating K interference power measurements GAP by the table look-up method described above may be used [ log ] ₂ N]A bit indicates the first index.

Specifically, the second pilot frequency may be determined after exchanging the pilot frequency configuration information (the resource position of the first pilot frequency and/or the resource position of the second pilot frequency) between the transmitting side and the interfering transmitting side through a specific communication protocol after the resource position of the delay-doppler-domain resource grid and the resource range of the interference measurement, for example, when both the transmitting side and the interfering transmitting side are base stations, the respective pilot frequency configuration information may be exchanged through the X2 interface, where the resource position of the second pilot frequency in the delay-doppler-domain resource grid may be included, and the resource range in which the receiving side may perform the interference measurement may also be included.

For example, the signaling sent by the sender side includes two parts:

(2) The frame structure on the interfering transmit side includes the sizes of M and N, and optionally the second pilot transmit position (the resource position of the second pilot in the delay-doppler-domain resource grid).

The signaling sent by the sending side may be a message for a specific user, for example, DCI, RRC message, etc.

Optionally, the method further comprises:

The transmitting side receives the target configuration information transmitted by the receiving side;

the transmitting side forwards the target configuration information to the interference transmitting side, wherein the target configuration information is used for indicating the interference transmitting side to configure the second pilot frequency based on the target configuration information.

Optionally, when the flow of interference management is triggered by the receiving side, the receiving side may determine the target configuration information directly by itself, for example, may determine the interference measurement area (IM detection area) directly by itself, that is, the position of the second pilot in the delay-doppler-domain resource grid may be used as the measurement area of interference measurement in the delay-doppler-domain resource grid.

Optionally, under the condition that the flow of interference management is triggered by the receiving side, the receiving side can directly determine target configuration information by itself, on the basis, the receiving side needs to send the target configuration information determined by itself to the receiving side, and after knowing the target configuration information determined by itself, the transmitting side needs to further instruct the interfering transmitting side, so that the interfering transmitting side determines the configuration of the second pilot frequency, namely, configures the second pilot frequency to be used for co-interference measurement in the IM detection area, so as to ensure that the receiving side can accurately measure the second pilot frequency in the resource range of interference measurement.

Optionally, the method further comprises:

the transmitting side transmits second indication information to the receiving side, wherein the second indication information is used for indicating the measurement area to be a resource grid range corresponding to the first pilot frequency.

And->

And->

When->

And

and->

And->

Optionally, the transmitting side may send second indication information to the receiving side, so as to indicate to the transmitting side that the measurement area is a resource grid range corresponding to the first pilot frequency; the receiving side may determine, based on the second indication information of the transmitting side, that the measurement area is a resource grid range corresponding to the first pilot frequency.

For example, the interference measurement region has J sets of selectable values. Assume that the first pilot position is [ ]k _p ,l _p )，(k _p ,l _p ) Representing the coordinates, k, of the pilot burst on the delay-doppler-domain resource grid _p Corresponding to Doppler dimension, l _p Corresponding to the delay dimension. The Gap region is [ k ] _p -2k _v ,k _p +2k _v ]And [ l ] _p -l _v ,l _p +l _v ]，[k _p -2k _v ,k _p +2k _v ]Representing the coordinate range in the Doppler dimension, [ l ] _p -l _v ,l _p +l _v ]Representing a range of coordinates in the delay dimension. The set of target location coordinate selectable values may be: g= { [ k _p -2k _v -k _j ,k _p +2k _v +k _j ],[l _p -l _v -l _j ,l _p +l _v +l _j ],j＝0,1,2,…,J-1,k ₀ ＝0,l ₀ ＝0,k _j ≥0,l _j ≥0}。

Optionally, the third indication information includes:

The bits indicate the specific option (i.e., the third index), J is a positive integer.

Optionally, the transmitting side may further receive fourth indication information, where the fourth indication information is information that the receiving side indicates whether the target position coordinate is available;

alternatively, the receiving side may transmit 1-bit feedback information (fourth indication information) indicating whether the currently selected interference measurement region is appropriate (whether the target position coordinates are available). The transmitting side may reconfigure the Gap region according to the feedback message.

For example, assume that the current configuration is { [ k ] _p -2k _v -k _j ,k _p +2k _v +k _j ],[l _p -l _v -l _j ,l _p +l _v +l _j ]When the transmitting side receives the fourth indication information as 0, the configuration may become { [ k ] _p -2k _v -k _j+1 ,k _p +2k _v +k _j+1 ],[l _p -l _v -l _j+1 ,l _p +l _v +l _j+1 ]}. When the fourth indication information is received as 1, the configuration remains unchanged.

Optionally, in the case that the interference transmitting side adopts an OFDM system, since the pilot mapping mode of the OFDM system is to hash and place the reference signal sequence according to a certain pattern on the TF domain resource grid, when the reference signal sequence is transformed to the DD domain by SFFT, the transformed reference signal sequence is spread over the entire DD domain resource grid. If the reference signal of the TF domain and the data are orthogonally multiplexed in the same subframe at this time, the reference signal and the data are non-orthogonally overlapped on the D-RE after being transformed to the DD domain, which is unfavorable for detection. Thus, for a co-existence system of OTFS and OFDM, interference measurements can be made in the time-frequency domain (TF domain).

Optionally, the transmitting side may send sixth indication information to the receiving side, where the receiving side determines a time-frequency domain resource location corresponding to the second pilot frequency based on the sixth indication information; for example, the transmitting side may configure an interference measurement subframe, which is a blank subframe, on which no signal and no data are transmitted on the resources, and the transmitting side may indicate the position of the interference measurement subframe in the radio frame through broadcasting or receiving side dedicated signaling, and trigger the receiving side measurement behavior. Then the receiving side can acquire the position of the second pilot frequency in the TF domain based on the sixth indication information, and then the receiving side can perform neighbor cell interference channel measurement (measurement of the second pilot frequency of the interference transmitting side) at the known pilot frequency position of the TF domain; accurate measurement can be achieved.

Optionally, the transmitting side may further send seventh indication information to the receiving side, where the seventh indication information is used to indicate a measurement range in a delay-doppler-domain resource grid corresponding to interference measurement, where the delay-doppler-domain resource grid range corresponding to the interference measurement is not overlapped with the resource grid range corresponding to the first pilot frequency;

wherein the interference measurement may not be a pilot-based interference channel estimation and may be used only for estimating the neighbor interference power level.

According to the interference measurement method provided by the embodiment of the application, the execution main body can be an interference measurement device. In the embodiment of the present application, an interference measurement method performed by an interference measurement device is taken as an example, and the interference measurement device provided in the embodiment of the present application is described.

Fig. 17 is one of schematic structural diagrams of an interference measurement device provided in an embodiment of the present application, as shown in fig. 17, an interference measurement device 1700 includes: a first receiving module 1710, and an interference measuring module 1720; wherein:

the first receiving module 1710 is configured to receive a signal, where the signal includes a second pilot frequency sent by an interference sending side, and the interference sending side is an interference source when the receiving side performs receiving measurement on the first pilot frequency of the sending side;

an interference measurement module 1720 for performing interference measurements on the interfering transmit side, the interference measurements including measurements on the second pilot;

Optionally, the interference measurement device 1700 may receive a signal through the first receiving module 1710, where the signal includes a second pilot sent by an interference sending side, where the interference sending side is an interference source when the receiving side performs a reception measurement on the first pilot on the sending side; then performing, by an interference measurement module 1720, interference measurements on the interfering transmit side, the interference measurements including measurements on the second pilot; the receiving side and the transmitting side both adopt an orthogonal time-frequency space domain OTFS system.

Optionally, the interference measurement module 1720 is specifically configured to:

in case the interfering transmission side employs an OTFS system, interference measurements on the interfering transmission side are performed in the delay-doppler domain.

determining target configuration information required by the interference measurement;

determining that the interference measurement is triggered;

and performing interference measurement on the interference transmitting side in the delay Doppler domain based on the target configuration information.

Optionally, the interference measurement module 1720 is specifically configured to at least one of:

the receiving side determines that the interference measurement is triggered;

uplink control signaling UCI, uplink reference signal SRS, or uplink MAC CE.

Optionally, the first indication information is carried in at least one of:

SSB, PBCH, SIB, DCI, RRC or MAC CE.

Optionally, the first indication information includes at least one of:

the receiving side directly determines the target configuration information.

Optionally, the apparatus further comprises:

and the second sending module is used for sending the target configuration information to the sending side, wherein the target configuration information is used for indicating the interference sending side to configure the second pilot frequency based on the target configuration information through the sending side.

determining a measurement area of the interference measurement in a delay-doppler-domain resource grid based on the target configuration information;

in the measurement area, interference measurement on the interference transmitting side is performed.

determining the resource position of the second pilot frequency in a delay Doppler domain resource grid based on the target configuration information;

determining the measurement area as the resource position of the second pilot frequency in a delay Doppler domain resource grid; and the resource position of the second pilot frequency of the interference transmitting side in the delay Doppler domain resource grid is not overlapped with the resource grid range corresponding to the first pilot frequency.

determining the measurement area in a resource grid range of a delay Doppler domain corresponding to the first pilot frequency;

determining the measurement area as a resource grid range corresponding to the first pilot frequency based on preset;

determining the measurement area as a resource grid range corresponding to the first pilot frequency based on protocol pre-configuration;

and determining the measurement area as a resource grid range corresponding to the first pilot frequency based on the second indication information of the transmitting side.

Optionally, the third indication information includes:

Optionally, the apparatus further comprises:

and the third sending module is used for sending fourth indication information to the sending side, wherein the fourth indication information is used for indicating whether the target position coordinates are available or not.

the interference measurement module 1720 is specifically configured to:

receiving sixth indication information sent by the sending side, wherein the sixth indication information is used for indicating a time-frequency domain resource position corresponding to the second pilot frequency;

And determining the time-frequency domain resource position corresponding to the second pilot frequency based on the sixth indication information.

the interference measurement module 1720 is specifically configured to:

and performing blind detection and determining the time-frequency domain resource position corresponding to the second pilot frequency.

and measuring an interference channel based on the time-frequency domain resource position corresponding to the second pilot frequency.

transforming the received signal to a delay-doppler domain if the first time unit comprises the first pilot or if the first time unit comprises the first pilot and transmission data;

acquiring component values of the first pilot frequency on REs in a TF domain;

receiving seventh indication information sent by a sending side; the seventh indication information is used for indicating a measurement range in a delay-doppler-domain resource grid corresponding to interference measurement, wherein the delay-doppler-domain resource grid range corresponding to the interference measurement is not coincident with the resource grid range corresponding to the first pilot frequency;

An interference average power is determined based on received samples in the signal that are within a measurement range.

Fig. 18 is a second schematic structural diagram of an interference measurement device according to an embodiment of the present application, as shown in fig. 18, the interference measurement device 1800 includes: a first transmitting module 1810, wherein:

the first transmitting module 1810 is configured to transmit an initial signal, where the initial signal is used for the receiving side to perform reception measurement on a first pilot frequency of the transmitting side;

Optionally, the interference measurement device 1800 may send an initial signal through the first sending module 1810, where the initial signal is used for the receiving side to perform a reception measurement on the first pilot on the sending side; the signal corresponding to the receiving measurement comprises the initial signal and a second pilot frequency sent by an interference sending side, the interference sending side is an interference source of the receiving measurement, and the second pilot frequency is used for interference measurement of the receiving side for the interference sending side; the receiving side and the transmitting side both adopt an orthogonal time-frequency space domain OTFS system.

Optionally, the apparatus further comprises:

and the fourth sending module is used for sending first indication information to the receiving side, wherein the first indication information is used for indicating target configuration information required by the interference measurement.

Optionally, the apparatus further comprises:

The second receiving module is used for receiving an interference measurement configuration request signaling sent by the receiving side, wherein the interference measurement configuration request signaling is used for requesting the target configuration information;

and a fifth sending module, configured to send first indication information based on the interference measurement configuration request signaling, where the first indication information is used to indicate the target configuration information.

Optionally, the apparatus further comprises:

a third receiving module, configured to receive the target configuration information sent by the receiving side;

and a sixth sending module, configured to forward the target configuration information to the interference sending side, where the target configuration information is used to instruct the interference sending side to configure the second pilot frequency based on the target configuration information.

Optionally, the apparatus further comprises:

and a seventh sending module, configured to send second indication information to the receiving side, where the second indication information is used to indicate that the measurement area is a resource grid range corresponding to the first pilot frequency.

The interference measurement device in the embodiment of the application may be an electronic device, for example, an electronic device with an operating system, or may be a component in the electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

The interference measurement device provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 9 to 16, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.

Optionally, fig. 19 is a schematic structural diagram of a communication device provided in the embodiment of the present application, as shown in fig. 19, and further provides a communication device 1900, including a processor 1901 and a memory 1902, where a program or an instruction that can run on the processor 1901 is stored in the memory 1902, and when the communication device 1900 is a terminal, for example, the program or the instruction implements each step of the above-mentioned interference measurement method embodiment when being executed by the processor 1901, and can achieve the same technical effects. When the communication device 1900 is a network side device, the program or the instruction, when executed by the processor 1901, implements the steps of the above-described interference measurement method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides receiving side equipment which comprises a processor and a communication interface,

the communication interface is used for:

The processor is configured to:

The embodiment of the receiving side device corresponds to the embodiment of the receiving side method, and each implementation process and implementation manner of the embodiment of the method can be applied to the embodiment of the receiving side device, and the same technical effects can be achieved. Specifically, fig. 20 is a schematic hardware structure of a receiving-side device implementing an embodiment of the present application.

The receiving side device 2000 includes, but is not limited to: at least part of the components of the radio frequency unit 2001, the network module 2002, the audio output unit 2003, the input unit 2004, the sensor 2005, the display unit 2006, the user input unit 2007, the interface unit 2008, the memory 2009, the processor 2010, and the like.

Those skilled in the art will appreciate that the receiving-side device 2000 may also include a power source (e.g., a battery) for powering the various components, which may be logically coupled to the processor 20 by a power management system to perform functions such as managing charging, discharging, and power consumption by the power management system. The structure of the receiving-side apparatus shown in fig. 20 does not constitute a limitation of the receiving-side apparatus, and the receiving-side apparatus may include more or less components than those shown in the drawings, or may combine some components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 2004 may include a graphics processing unit (Graphics Processing Unit, GPU) 20041 and a microphone 20042, the graphics processor 20041 processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 2006 may include a display panel 20061, and the display panel 20061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 2007 includes at least one of a touch panel 20071 and other input devices 20072. The touch panel 20071 is also referred to as a touch screen. The touch panel 20071 can include two parts, a touch detection device and a touch controller. Other input devices 20072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving the downlink data from the network side device, the radio frequency unit 2001 may transmit the downlink data to the processor 2010 for processing; in addition, the radio frequency unit 2001 may send uplink data to the network side device. In general, the radio frequency unit 2001 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 2009 may be used to store software programs or instructions and various data. The memory 2009 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 2009 may include volatile memory or nonvolatile memory, or the memory 2009 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 2009 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

Processor 2010 may include one or more processing units; optionally, the processor 2010 integrates an application processor that primarily handles operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily handles wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 2010.

Among them, the radio frequency unit 2001 is for:

the processor 2010 is configured to:

Optionally, where the interfering transmitting side employs an OTFS system, the processor 2010 is configured to:

and performing interference measurement on the interference transmitting side in the delay Doppler domain.

Optionally, the processor 2010 is configured to:

determining that the interference measurement is triggered;

Optionally, the processor 2010 is configured to:

receiving first indication information sent by the sending side, wherein the first indication information is used for indicating the target configuration information;

and determining the target configuration information based on the first indication information.

Optionally, the processor 2010 is configured to at least one of:

after the receiving side receives the first indication information, determining that the interference measurement is triggered;

determining that the interference measurement is triggered if a signal to interference plus noise ratio, SINR, is determined to be greater than a first threshold, wherein the SINR is obtained based on a reception measurement of the first pilot;

in the event that the receiver error rate is determined to be greater than a second threshold, the interference measurement is determined to be triggered.

Optionally, the processor 2010 is configured to:

determining that the interference measurement is triggered;

Optionally, the processor 2010 is configured to at least one of:

in case it is determined that the receiver error rate is greater than a second threshold, the receiving side determines that the interference measurement is triggered.

Optionally, the processor 2010 is configured to:

transmitting an interference measurement configuration request signaling to the transmitting side, wherein the interference measurement configuration request signaling is used for requesting the target configuration information;

receiving first indication information sent by the sending side based on the interference measurement configuration request signaling, wherein the first indication information is used for indicating the target configuration information;

Uplink control signaling UCI, uplink reference signal SRS, or uplink MAC CE.

Optionally, the first indication information is carried in at least one of:

SSB, PBCH, SIB, DCI, RRC or MAC CE.

Optionally, the first indication information includes at least one of:

Optionally, the processor 2010 is configured to:

and directly determining the target configuration information.

Optionally, the processor 2010 is configured to:

the target configuration information is sent to the sending side, and the target configuration information is used for indicating the interference sending side to configure the second pilot frequency based on the target configuration information through the sending side.

Optionally, the processor 2010 is configured to:

Optionally, the third indication information includes:

Optionally, the processor 2010 is configured to:

and sending fourth indication information to the sending side, wherein the fourth indication information is used for indicating whether the target position coordinates are available.

The processor 2010 is configured to:

the processor 2010 is configured to:

Optionally, the processor 2010 is configured to:

Optionally, in a case where the first time unit includes the first pilot, or in a case where the first time unit includes the first pilot and transmission data, the processor 2010 is configured to:

the receiving side transforms the received signal to a delay-doppler domain;

Optionally, the processor 2010 is configured to:

The embodiment of the application also provides a transmitting side device, which comprises a processor and a communication interface, wherein the communication interface is used for:

The embodiment of the transmitting side device corresponds to the embodiment of the method of the transmitting side device, and each implementation process and implementation manner of the embodiment of the method can be applied to the embodiment of the transmitting side device, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides a transmitting side device. Fig. 21 is a schematic hardware structure of a transmitting side device for implementing an embodiment of the present application. As shown in fig. 21, the transmitting-side apparatus y00 includes: an antenna 2101, a radio frequency device 2102, a baseband device 2103, a processor 2104, and a memory 2105. The antenna 2101 is connected to the radio frequency device 2102. In the uplink direction, the radio frequency device 2102 receives information via the antenna 2101, and transmits the received information to the baseband device 2103 for processing. In the downstream direction, the baseband device 2103 processes information to be transmitted and transmits the processed information to the radio frequency device 2102, and the radio frequency device 2102 processes the received information and transmits the processed information through the antenna 2101.

The method performed by the transmitting-side apparatus in the above embodiment may be implemented in the baseband apparatus 2103, the baseband apparatus 2103 including a baseband processor.

The baseband apparatus 2103 may, for example, comprise at least one baseband board on which a plurality of chips are disposed, as shown in fig. 21, where one chip, for example, a baseband processor, is connected to the memory 2105 through a bus interface to invoke a program in the memory 2105 to perform the network device operations shown in the above method embodiment.

The transmitting side device may also include a network interface 2106, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the transmitting-side apparatus 21000 of the embodiment of the present invention further includes: instructions or programs stored in the memory 2105 and executable on the processor 2104, the processor 2104 invokes the instructions or programs in the memory 2105 to perform the method performed by the modules shown in fig. 18, and achieve the same technical effects, and are not repeated here.

Optionally, the radio frequency device 2102 is configured to:

Optionally, the radio frequency device 2102 is further configured to:

and sending first indication information to the receiving side, wherein the first indication information is used for indicating target configuration information required by the interference measurement.

Optionally, the radio frequency device 2102 is further configured to:

Optionally, the radio frequency device 2102 is further configured to: receiving the target configuration information sent by the receiving side;

and forwarding the target configuration information to the interference transmitting side, wherein the target configuration information is used for indicating the interference transmitting side to configure the second pilot frequency based on the target configuration information.

Optionally, the radio frequency device 2102 is further configured to: and sending second indication information to the receiving side, wherein the second indication information is used for indicating that the measurement area is a resource grid range corresponding to the first pilot frequency.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored, and when the program or the instruction is executed by a processor, the processes of the foregoing embodiments of the interference measurement method are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the receiving side device described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used for running a program or an instruction, so as to implement each process of the above-mentioned interference measurement method embodiment, and can achieve the same technical effect, so that repetition is avoided, and no redundant description is provided herein.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above-mentioned interference measurement method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated here.

The embodiment of the application also provides an interference measurement system, which comprises: a receiving-side network operable to perform embodiments of the respective interference measurement methods described above, and a transmitting device operable to perform embodiments of the interference measurement methods described above.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A method of interference measurement, comprising:

2. The interference measurement method according to claim 1, wherein in the case where the interference transmitting side adopts an OTFS system, the receiving side performs interference measurement on the interference transmitting side, comprising:

3. The interference measurement method according to claim 2, wherein the receiving side performs interference measurement on the interfering transmitting side in the delay-doppler domain, comprising:

the receiving side determines that the interference measurement is triggered;

4. The interference measurement method according to claim 3, wherein the receiving side determining target configuration information required for the interference measurement includes:

5. The interference measurement method according to claim 4, wherein the receiving side determining that the interference measurement is triggered comprises at least one of:

6. The interference measurement method according to claim 2, wherein the receiving side performs interference measurement on the interfering transmitting side in the delay-doppler domain, comprising:

the receiving side determines that the interference measurement is triggered;

7. The interference measurement method according to claim 6, wherein the receiving side determining that the interference measurement is triggered comprises at least one of:

8. The interference measurement method according to claim 6 or 7, wherein the receiving side determining target configuration information required for the interference measurement includes:

9. The interference measurement method according to claim 8, wherein the interference measurement configuration request signaling carries at least one of:

uplink control signaling UCI, uplink reference signal SRS, or uplink MAC CE.

10. The interference measurement method according to claim 4 or 8, wherein the target configuration information comprises a resource location of the second pilot in a delay-doppler-domain resource grid and a resource range of the interference measurement.

11. The interference measurement method according to claim 4 or 8, wherein the target configuration information includes a time length of the interference measurement, a frame structure of the interference transmitting side, and a resource position of the second pilot in a delay-doppler-domain resource grid;

12. The interference measurement method according to claim 4 or 8, wherein the target configuration information includes a time length of the interference measurement, a frame structure of the interference transmitting side, and a resource position of the second pilot in a delay-doppler-domain resource grid;

13. The interference measurement method according to any of claims 10-12, wherein the first indication information is carried in at least one of:

a synchronization signal block SSB, a physical broadcast channel PBCH, a system information block SIB, downlink control information DCI, a radio resource control RRC or a control unit MAC CE of a medium access control.

14. The interference measurement method according to any one of claims 10-12, wherein the first indication information comprises at least one of:

15. The interference measurement method according to claim 6 or 7, wherein the receiving side determining target configuration information required for the interference measurement includes:

the receiving side directly determines the target configuration information.

16. The interference measurement method according to claim 15, characterized in that the method further comprises:

17. The interference measurement method according to any one of claims 3-16, wherein the receiving side performs interference measurement on the interfering transmitting side in the delay-doppler domain, comprising:

18. The interference measurement method according to claim 17, wherein the receiving side determining a measurement region of the interference measurement in a delay-doppler-domain resource grid based on the target configuration information, comprises:

19. The interference measurement method according to claim 2, wherein the receiving side performs interference measurement of an interfering transmitting side in the delay-doppler domain, comprising:

20. The interference measurement method according to claim 19, wherein the receiving side determining the measurement region within a resource grid range of a delay-doppler domain corresponding to the first pilot includes:

21. The interference measurement method according to claim 19, wherein the receiving side determining the measurement region within a resource grid range of a delay-doppler domain corresponding to the first pilot includes:

22. The interference measurement method according to claim 21, wherein the third indication information includes:

23. The interference measurement method according to claim 22, characterized in that the method further comprises:

24. The interference measurement method according to claim 1, wherein in the case where the interference transmitting side employs an OFDM system, a first time unit for indicating the interference measurement is included in the signal;

25. The interference measurement method according to claim 24, wherein the first time unit is blank, or the first time unit comprises the first pilot and transmission data;

26. The interference measurement method according to claim 24, wherein the first time unit is blank, or the first time unit comprises the first pilot and transmission data;

27. The interference measurement method according to claim 25 or 26, characterized in that said performing interference measurement on the interfering transmission side comprises:

28. The interference measurement method according to claim 25 or 26, wherein the performing the interference measurement on the interference transmitting side in the case where the first time unit includes the first pilot or in the case where the first time unit includes the first pilot and transmission data, further comprises:

the receiving side transforms the received signal to a delay-doppler domain;

the receiving side obtains component values of the first pilot frequency on each resource element RE in a time-frequency domain;

29. The interference measurement method according to claim 1, wherein the receiving side performs interference measurement on the interfering transmitting side, comprising:

30. A method of interference measurement, comprising:

31. The interference measurement method according to claim 30, characterized in that the method further comprises:

32. The interference measurement method according to claim 30, characterized in that the method further comprises:

33. The interference measurement method according to claim 31 or 32, wherein the target configuration information comprises a resource location of the second pilot in a delay-doppler-domain resource grid and a resource range of the interference measurement.

34. The interference measurement method according to claim 31 or 32, wherein the target configuration information includes a time length of the interference measurement, a frame structure of the interference transmitting side, and a resource position of the second pilot in a delay-doppler-domain resource grid;

35. The interference measurement method according to claim 31 or 32, wherein the target configuration information includes a time length of the interference measurement, a frame structure of the interference transmitting side, and a resource position of the second pilot in a delay-doppler-domain resource grid;

36. The interference measurement method according to claim 30, characterized in that the method further comprises:

37. The interference measurement method according to claim 30, characterized in that the method further comprises:

38. An interference measurement device, comprising:

39. An interference measurement device, comprising:

40. A receiving side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the interference measurement method according to any one of claims 1 to 29.

41. A transmitting side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the interference measurement method according to any one of claims 30 to 37.

42. A readable storage medium, characterized in that the readable storage medium has stored thereon a program or instructions which, when executed by a processor, implement the steps of the interference measurement method according to any of claims 1 to 29 or the steps of the interference measurement method according to any of claims 30 to 37.